On Thu, 07 Aug 2003 14:25:42 +0100, Dave Ludlow
wrote:


Talking of which, I've got a portable A/C unit in my "home office" and
I've noticed that some people dismiss them as "useless" because they
only lower temperatures by 3 or 4 degrees C in a single room i.e. they
won't keep it at 21 like the big office systems. At first, I was
disappointed but then I realised that they make it feel much cooler
than the temperature indicates. I'm certain now that it's lower
humidity created by such units that make it *feel* cooler than it
really is. I'm emptying 10 litres of water a day from mine, all
extracted the room air.


Also, the lower humidity would allow an increase in the rate of
evaporation of perspiration resulting in a lower skin temperature.

--
Alan White
Twenty-eight miles NW of Glasgow.
Overlooking Loch Goil and Loch Long in Argyll, Scotland.
http://tinyurl.com/55v3